Which of the following mixtures can be seperated into its costituents by using concentrated sodium hydroxide ?

Which of the following mixtures can be seperated into its costituents

1.	Which of the following mixtures can be seperated into its costituents by using concentrated sodium hydroxide ?
Answer» `AI^(3+)` and `FE^(3+)` `AI^(3+)` and `An^(2+)` `ZN^(2+)`and `PB^(2+)` `Sn^(2+)` and `Pb^(2+)` Solution :`AI^(3+)` dissolvesin conc NAOH but `Fe^(3+)` does not `Fe^(3+)+NaOHrarrFe(OH)_(3)`